1: per-domain IOMMU bitmap needs to have dynamic size 2: fix reduced page table levels support when sharing tables 3: don't needlessly engage the untrusted-MSI workaround
As to 4.16 considerations: Only patch 1 addresses a regression introduced after 4.15, the others are older. Patch 3 additionally only addresses an inefficiency; the code we have is correct from a functional pov. Jan
